{"pk":28370,"title":"Lexical access in the face of degraded speech: The effects of cognitive adaptation","subtitle":null,"abstract":"Spoken language unfolds over time. Listeners cope with this by activating multiple lexical candidates which compete forrecognition (McClelland & Elman, 1986). Competition dynamics change with degraded speech (Brouwer & Bradlow,2016; McMurray, Farris-Trimble, & Rigler, 2017; McQueen & Huettig, 2012) but it is unclear whether this reflects thedegraded input, or functional adaptation. In two visual world paradigm experiments, listeners heard different levels ofdegraded (noise-vocoded) speech. Experiment 1 manipulated degradation level in blocks or interleaved across trials.Interleaving led to processing delays beyond that of degradation alone. We also found switch-costs when degradationlevel differed between trials. This suggests differences in lexical dynamics are not solely due to degradation level. Inexperiment 2, a visual cue indicated the degradation level before each trial. This reduced the delay and switch costs,suggesting adaptation before the input. These experiments support a role for central processing in dealing with degradedspeech.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[],"section":"Abstracts-Posters","is_remote":true,"remote_url":"https://escholarship.org/uc/item/5kv2r0w6","frozenauthors":[{"first_name":"Francis","middle_name":"","last_name":"Smith","name_suffix":"","institution":"University of Iowa","department":""},{"first_name":"Bob","middle_name":"","last_name":"McMurray","name_suffix":"","institution":"University of Iowa","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2018-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/28370/galley/18110/download/"}]}